Machine for fastening the bottoms in angular vessels of sheet metal.



No. 704,735. Y Patented my x5, :9:52. w. cARLauDE. y MACHINPFORFASTENING THE BUTTDMS 1N ANGULAR VESSELS UF- SHEET METAL.

(Application filed Apr. 2, 1901.) (No Model.) Y 4 Sheets-Sheet l.

Patented luly I5, |902.

w. cAnLJ-uue. MACHINE FOR FASTENING THE BOTTIIS IN ANGULAH VESSELS 0FSHEET METAL.

(Appxication tiled Apr. 2, 1901.)

4 Sheets-Sheet 2.

(llo Model.) y

b :1|: lulmlillnhvilul l l l l I i 4 i I o I l G l lr l L l l l t I i Il 1 t l l I Il Patented July l5, i902.

No. 704,735.V

W. CARLJUDE. MACHINE FOB FASTEHIHG THE BOTTUIIS IN ANGULAR VESSELS 0FSHEET METAL.

'(Appxieaemn :ma apr. 2. 190x.)

sheets-sheet s.

(llov Model.)

' Patented `Julyl 15,; 1902.

w. cAnLJunE, y MACHINE FDR FASTENING -T-HEBOTTDHSIN ANGULAR VESSELS 0FASHEET METAL.

(Application led Apr. 2,y 1901.#

(lilollodel.)

4 Sheetsvsheet 4,

UNITED "STATES,

"PATENTOFFICEQ WILHELM OARLJUDE, OE LUND, SWEDEN, `TO AKTIEBOLAGETBLEGKTARUFABRIKEN I. LUND, OF'LUND, SW'EDEN.'

MACHINE FOR FASTENING THE BOTTOMS lN ANGULAR VESSELS 0F SHEETllflEl'-ll.I

SPECIFICATION forming' part 0f Letters Patent NO.` 704,735, dated July 15, 1902. Y Application led April. Z, 1901. Serial No. 54.048. (Nomodel.)

To all whom /.may concern.-

Beit known that I, WILHELM CARLJUDE, a subject of the German Emperor,and a resident of Lund, Sweden, have invented certain new and usefulImprovements in Machines for Fastening the'Bottoms in Angular Vessels ofSheet Metal; and I do hereby declare'the following to be afull, clear,and exact description of the invention, such'aswill enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to letters ofreference marked thereon, which form a part of this specification.

The object ofthe invention is a useful and practical and, moreover,simple and cheap machine for fastening the bottom in angular vessels ofsheet metal by means of inside double seams. It has been heretoforeproposedto use such means for this purpose (see British Patent No. 2,332of 1893) and to tighten all seams around the whole bottom simultaneouslyby causing a hollow die to drop on the vessel when the latter is 'placedbottom upward on a block. By using such amethod it will be necessary tomake a new pair of dies for every different-sizedncanffor eventhesmallest.

change of form or'size of the vessel, and as such dies are veryexpensive the method cannot be used economically but for very greatorders. Besides this old method has yanother difficulty. .The block oranvil supporting the inside of the bottom ofthe vessel must be ofsufficient length and width so as to make nice r about the appearance ofa machine generally contact with all sides of the vessel simultaneously,and, moreover, it must make contact with the inside of the bottom; butthe seams before tightening projectinwardly to a certain extent, andthus prevent the block or anvil from reaching the bottom unless theblock is `very tapered.. For this reason the drop-stamp must also betaperedinternally,

- and the bottom edges of the vesselwill-thus be forced inwardA tio-forman angle with the sides offthe vessel. )The result will be that thematerialisbroken in the corners or the tightening will be insufficient.For obviatin g such inconveniences the seams are tightened successivelyupon a rail or similar support capable of being used for angular vesselsof different shape and size and so that the seams may lie in a straightline withthe side walls of the vessel.; The new support is moreover sovcheap that itcan be changed with very little expense when necessary.

The inserting of the bottom inthe body before closing the seams ispreferably effected by means of a free-standing table, the plate` ofwhich vis about the size of the' bottom, so

that the body of the vessel can be passed over said table and the latterserve as support for` the bottom when the edges thereof, previouslyturned into the suitable shape, are caused to engage with the edges ofthe body correspondingly formed. VvSuch table is very useful and may bemade with very little cost, as the plate of the table need not haveexactly the shape and size of the vessel and may Y consist, forexample,of a block of wood or other suitable material.

The invention may be more readily understood by referring to thedrawings, iu which like parts are similarly designated.

Figure l is a vertical section on line A A, Fig. 2; and Fig. 2 is a sideview of a rollerpress machine for closing the joints. Fig. 3 isacross-section of a bottom seam or joint after closing. Figs. 4 and 5are front and side views of a drop-press for closing the joints, theroller being substituted by a drop-hammer of suitable shape. tary viewshowing the preferred form of the working surface of said hammer seenfrom the end, as in Fig. 5.

The machine shown in Figs. l and 3 has Fig. 6 is a fragmen used forclosing the vertical joints of the ;body, and consists of a frame orupright a,

in which a horizontal rack-bar b can be reciprocated bymeans of crank cand pinion d, thefrontend of. said rack-bar being guided by a horizontalarm e, which projects from the'top of the upright, and the free end ofpwhichis by means of a stay f connected to the base g, so that theroller h, having bearings in the front forked end of the rack-bar b, ismoved parallel withsaid arm e-when rotating the crank c.

The support t', serving as an anvil for the vessel when compressing thejoints, consists of a rod or rail free at both ends and having such ashape and such a position alongf IOO the path of the roller h that theinner edges of the bottom of the vessel may be caused to rest upon saidanvil i one after the other. In the instance illustrated the anvil ismade of a piece of a rail substantially V or L shaped in cross-sectionand fastened to the top of a free-standing bent pillarj; but it isobvious that said anyil may be supported in any other manner, as by anupwardly-bent arm proj ecting from the upright a. rlhe anvil t' shouldpreferably have the roof-like position shown in Fig. 1, with the workingsurfaces sloping downward on both sides, so that the vessel passed overit will by its own weight adjust itself in proper position.

The lower edges of the body are turned so as to form an upward insidechannel, and the edges of the bottom are bent to form a downwardchannel, and the bottom is placed into the body and adjusted to itsproper place, preferably by means of a suitable table, as stated, so asto cause the edges of the bottom to' engage with the channels of thebody. Then the vessel is passed over the anvil z', so that the lattercomes in contact with the inside of one of the bottom joints, as shownin Fig. l. If the joint is longer than the anvil, the vessel is moved tothe left, as shown in Fig. 2, and the roller is advanced and caused towork upon the outside of the joint by rotating the crank, thuscompressing the joint so far as the same is supported by the anvil. Whenthe roller has passed the anvil, the Vesselis moved to the right and theroller is returned the same way by rotating the crank in the oppositedirection. Then the remaining part of the joint is also compressed in asimilar manner. Now the vessel is turned so as to bringanother bottomjoint in working position on the anvil, and this joint is compressed inthe same manner. The other bottom joints are also closed one afteranother, as already stated. When the roller is provided with an offsetor shoulder 7c, as shown in Fig. l, the joint is pressed into thechannel thus formed on the roller, so that a corresponding shoulder Z isformed on theoutside of the'vessel, as shown, to give a perfectly smoothinterior. By this shoulder the bottom isprevented from being pushedupwardly after closing.

In the drop-press shown in Figs. 4 and 5 the roller, rack-bar, pinion,and crank are dispensed with and substituted by a drophammer fm, slidingon vertical guides o?, and lifted, for example, by a rope passing over apulley r or the like. The anvil or rail t' is the same as in Figs. land2 and is placed beneath thehammer. The latter is locked and released bymeans of a ratchet-lever s or equivalents. The joints are compressed oneafter another by adjusting them on the anvil and releasing the hammer.It should be no- 1 ticed, however, that the rollerpress closes thejoints more nicely and perfectly than the drop-press.

Having thus described my said invention, what I claim as new therein,and desire to secure by Letters Patent, isy l. In a machine forfastening the bottoms in angular cans, a support for the can havinginclined faces corresponding to the plane of the bottom and side to bejointed and comprising a substantially angular bar to hold the bottomand side to be jointed in inclined position, and means having a groovetherein complementary to the support, adapted to cooperate therewith toclose the seam, the bisector of the angle formed by the inclined facesand that of the groove substantially in alinement, whereby the sides ofsaid groove will exert a vertical pressure on the seam and bottom,substantially vas described.

2. In a machine for fastening the bottoms in angular cans, a bar tosupport the can having two inclined faces having the same angularsection as the bottom and side to be jointed to hold the bottom and sideinclined, and a reciprocable roller having an angular groove thereincomplementary to the support and adapted to cooperate with the supportto close the seam,the bisector of the angle formed by the inclined facesand that of the groove substantially in alinement, whereby a verticalpressure will be exerted on both t-he seam and the bottom of the can',substantially as described.

3. In a machine for fastening the bottoms in angular cans, asubstantially V shaped rail, the sides of which have the same angularrelation as the side and bottom to be jointed, to hold the side andbottom of the can inclined, a reciprocable roller having a V-shapedgroove therein to ride over the'rail and an offset on one side of theroller substantially equal to the thickness of the metal turned over,whereby the interior of the can at the 'joint will have plane meetingsurfaces, substantially as described.

4. In a machine for fastening the bottoms in angular cans, asubstantially V-shaped rail shorter than the width of a side of the can,the medial line of the angle of said rail vertical and a roller having acomplementary groove to roll on said rail and provided with an offset onone side substantially equal to the thickness of the metal turned over,whereby the interior meeting surfaces of the can are plane and the edgessecurely fastened, substantially as described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

WILHELM CARLJUDE.

Witnesses:

E. A. EnIcsoN, A. EDw. ELvERsEN.

IOO

IIO

